On Thu, Jun 28, 2018 at 12:28 AM Stanimir Varbanov
<stanimir.varbanov@xxxxxxxxxx> wrote:
>
> This move the calculations of raw and compressed buffer sizes
> on common helper and make it identical for encoder and decoder.
>
> Signed-off-by: Stanimir Varbanov <stanimir.varbanov@xxxxxxxxxx>
> ---
> drivers/media/platform/qcom/venus/helpers.c | 98 +++++++++++++++++++++++++++++
> drivers/media/platform/qcom/venus/helpers.h | 2 +
> drivers/media/platform/qcom/venus/vdec.c | 54 ++++------------
> drivers/media/platform/qcom/venus/venc.c | 56 ++++-------------
> 4 files changed, 126 insertions(+), 84 deletions(-)
>
> diff --git a/drivers/media/platform/qcom/venus/helpers.c b/drivers/media/platform/qcom/venus/helpers.c
> index 6b31c91528ed..a342472ae2f0 100644
> --- a/drivers/media/platform/qcom/venus/helpers.c
> +++ b/drivers/media/platform/qcom/venus/helpers.c
> @@ -452,6 +452,104 @@ int venus_helper_get_bufreq(struct venus_inst *inst, u32 type,
> }
> EXPORT_SYMBOL_GPL(venus_helper_get_bufreq);
>
> +static u32 get_framesize_raw_nv12(u32 width, u32 height)
> +{
> + u32 y_stride, uv_stride, y_plane;
> + u32 y_sclines, uv_sclines, uv_plane;
> + u32 size;
> +
> + y_stride = ALIGN(width, 128);
> + uv_stride = ALIGN(width, 128);
> + y_sclines = ALIGN(height, 32);
> + uv_sclines = ALIGN(((height + 1) >> 1), 16);
> +
> + y_plane = y_stride * y_sclines;
> + uv_plane = uv_stride * uv_sclines + SZ_4K;
> + size = y_plane + uv_plane + SZ_8K;
Do you know the reason for this extra 8K at the end?
